Golf practicing device having velocity detection function

ABSTRACT

A golf practicing device includes a housing, a sensor mounted in the housing and provided with a velocity sensing member and a position sensing member, and a rotation disk rotatably mounted in the housing and having a periphery formed with a protruding velocity sensed portion that is movable to pass through the sensor to connect the velocity sensing member of the sensor, and a protruding position sensed portion that is movable to pass through the sensor to connect the position sensing member of the sensor. Thus, the golf practicing device has a velocity detection function.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a golf practicing device, and more particularly to a golf practicing device having a velocity detection function.

2. Description of the Related Art

A conventional golf practicing device comprises a rotation disk, and a bar having a first end mounted on the a rotation disk and a second end formed with a practicing ball. Thus, the user can practicing the golf skills indoors by striking the practicing ball.

However, the conventional golf practicing device does not have a velocity detection function, so that the user cannot obtain the velocity of the practicing ball. In addition, the bar is rotated successively when being hit and cannot be returned to the original position automatically, so that the user has to wait until the bar stops moving or exert a force to stop movement of the bar, thereby causing inconvenience to the user. Further, the practicing ball of the bar is located close to the ground, thereby causing inconvenience to the learner. Further, the height of the practicing ball of the bar is fixed and cannot be adjusted so as to fit users of different heights and statures, thereby causing inconvenience to the users when using the golf practicing device.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a golf practicing device having a velocity detection function.

Another objective of the present invention is to provide a golf practicing device, wherein the sensor detects the velocity of the practicing ball, and the indication panel indicates the velocity of the practicing ball.

A further objective of the present invention is to provide a golf practicing device having an automatic restoring function.

A further objective of the present invention is to provide a golf practicing device, wherein the energized electromagnet produces a magnetic force to magnetically attract and move the magnetic block to return the bar to the original position, so that the bar can be restored to the original position automatically, thereby facilitating the user practicing the golf skill.

A further objective of the present invention is to provide a golf practicing device having a height adjustable function.

A further objective of the present invention is to provide a golf practicing device, wherein the height of the practicing ball of the bar can be adjusted arbitrarily so as to fit users of different heights and statures, thereby facilitating the users operating the golf practicing device.

In accordance with the present invention, there is provided a golf practicing device, comprising

-   -   a housing;     -   a sensor mounted in the housing and provided with a velocity         sensing member and a position sensing member; and     -   a rotation disk rotatably mounted in the housing and having a         periphery formed with a protruding velocity sensed portion that         is movable to pass through the sensor to connect the velocity         sensing member of the sensor, and a protruding position sensed         portion that is movable to pass through the sensor to connect         the position sensing member of the sensor.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a golf practicing device in accordance with the preferred embodiment of the present invention;

FIG. 2 is an exploded perspective view of the golf practicing device as shown in FIG. 1;

FIG. 2A is a perspective view of a housing of the golf practicing device as shown in FIG. 2;

FIG. 2B is a perspective view of an adjusting knob of the golf practicing device as shown in FIG. 2;

FIG. 2C is a perspective view of a cover of the golf practicing device as shown in FIG. 2;

FIG. 2D is a perspective view of a rotation disk of the golf practicing device as shown in FIG. 2;

FIG. 2E is a perspective view of a sensor of the golf practicing device as shown in FIG. 2;

FIG. 3 is an exploded perspective view of the golf practicing device as shown in FIG. 1;

FIG. 4 is a partially perspective view of the golf practicing device in accordance with the preferred embodiment of the present invention;

FIG. 5 is a layout diagram of a circuit board the golf practicing device in accordance with the preferred embodiment of the present invention;

FIG. 6 is a partially plan cross-sectional view of the golf practicing device as shown in FIG. 1;

FIG. 7 is a side plan cross-sectional view of the golf practicing device as shown in FIG. 1;

FIG. 7A is a partially enlarged view of the golf practicing device as shown in FIG. 7;

FIG. 8 is a side plan cross-sectional operational view of the golf practicing device as shown in FIG. 1; and

FIG. 8A is a partially enlarged view of the golf practicing device as shown in FIG. 8.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-6, a golf practicing device 1 in accordance with the preferred embodiment of the present invention comprises a base 92, a bottom plate 90, a housing 30, a support plate 70, a sensor 80, a rotation disk 40, a cover 20, a bar 25, an adjusting knob 10, an end cover 50, and a circuit board 60.

The base 92 is formed with a recess 93 having a periphery formed with a plurality of screw bores 95. The base 92 has a surface provided with a sod 94.

The bottom plate 90 is mounted in the recess 93 of the base 92 and has a periphery formed with a plurality of through holes 91 aligning with the screw bores 95 of the base 92.

The housing 30 is mounted on the bottom plate 90 and has an upper portion formed with a recess 31 and a through hole 32 communicating with the recess 31. The housing 30 has a surface formed with a chamber 35 (see FIG. 2A) and provided with two battery covers 33. An electromagnet 36 is mounted in the chamber 35 of the housing 30. The housing 30 has a periphery formed with a plurality of through holes 34 aligning with the through holes 91 of the bottom plate 90.

The golf practicing device 1 further comprises a plurality of screws 79 extended through the through holes 34 of the housing 30 and the through holes 91 of the bottom plate 90 and screwed into the screw bores 95 of the base 92, thereby securing the housing 30 and the bottom plate 90 on the base 92.

The support plate 70 is secured in the housing 30 and is provided with a bearing seat 71 for mounting a bearing 72. A detector 84 is mounted on a bottom of the support plate 70. Two battery covers 73 and 74 are mounted on the support plate 40.

The sensor 80 is mounted on the support plate 40 and is provided with a velocity sensing member 81 (see FIG. 2E) and a position sensing member 82. The sensor 80 has two opened ends each provided with a catch plate 83.

The rotation disk 40 is rotatably mounted on the support plate 70 and located in the housing 30. The rotation disk 40 has a periphery formed with a protruding velocity sensed portion 46 (see FIG. 2D) that is movable to pass through the sensor 80 as shown in FIG. 4 to connect the velocity sensing member 81 of the sensor 80, and a protruding position sensed portion 47 (see FIG. 2D) that is movable to pass through the sensor 80 as shown in FIG. 4 to connect the position sensing member 82 of the sensor 80. The velocity sensed portion 46 of the rotation disk 40 is formed with two opposite openings 48 (see FIG. 2D) located between the velocity sensed portion 46 and the position sensed portion 47 of the rotation disk 40.

The rotation disk 40 is provided with a first barrel 41 and a second barrel 45. The first barrel 41 of the rotation disk 40 has a diameter greater than that of the second barrel 45. The first barrel 41 of the rotation disk 40 is extended through the through hole 32 of the housing 30 and has a first end rotatably mounted on the bearing seat 71 of the support plate 70 by the bearing 72 and a second end formed with an insert 44. A bearing 75 is mounted in the recess 31 of the housing 30 and rotatably mounted between the first barrel 41 of the rotation disk 40 and the housing 30. The first barrel 41 of the rotation disk 40 has a periphery formed with an opening 42 and two opposite slide slots 43 each communicating with the opening 42.

The second barrel 45 of the rotation disk 40 has a first end extended from the second end of the first barrel 41 of the rotation disk 40 and formed with an outer thread 450. The second barrel 45 of the rotation disk 40 has a periphery formed with two opposite first limit grooves 451, two opposite second limit grooves 452, two opposite third limit grooves 453, and two opposite fourth limit grooves 454. Preferably, the first limit grooves 451, the second limit grooves 452, the third limit grooves 453 and the fourth limit grooves 454 of the second barrel 45 are disposed at different locations as shown in FIG. 6.

The cover 20 is rotatably mounted on the housing 30 and secured on the first end of the first barrel 41 of the rotation disk 40 to rotate therewith. The cover 20 has a periphery formed with an oblong slot 22. The cover 20 has a first side formed with a through hole 21 and a second side formed with a support rod 23 (see FIG. 2C). A magnetic block 24 is secured on the support rod 23 of the cover 20 and aligning with the electromagnet 36 mounted in the chamber 35 of the housing 30. The insert 44 of the first barrel 41 is inserted into the through hole 21 of the cover 20. The second barrel 45 of the rotation disk 40 has a second end protruded outward from the cover 20. A nut 76 is screwed on the outer thread 450 of the second barrel 45 and rested on the cover 20 to secure the cover 20 on the rotation disk 40 to rotate therewith.

The bar 25 is pivotally mounted on the cover 20 and has a first end extended through the oblong slot 22 of the cover 20 and pivotally mounted in the opening 42 of the first barrel 41. The first end of the bar 25 is formed with a through hole 27 aligning with the two opposite slide slots 43 of the first barrel 41. A pin 77 is extended through the through hole 27 of the bar 25 and is movably mounted in the two opposite slide slots 43 of the first barrel 41, so that the first end of the bar 25 is pivotally movable in the first barrel 41 of the rotation disk 40. The bar 25 has a second end formed with a practicing ball 26.

The adjusting knob 10 having a disk shape is movably mounted on the rotation disk 40 and has an inside provided with a sleeve 11 movably mounted in the second barrel 45 of the rotation disk 40 and rested on the first end of the bar 25. An elastic member 78 is mounted on the sleeve 11 of the adjusting knob 10 and is urged between the adjusting knob 10 and the rotation disk 40. The elastic member 78 has a first end urged on the inside of the adjusting knob 10 and a second end urged on the second end of the second barrel 45 of the rotation disk 40. The sleeve 11 of the adjusting knob 10 is provided with two opposite locking portions 12 selectively locked in the first limit grooves 451, the second limit grooves 452, the third limit grooves 453 and the fourth limit grooves 454 of the second barrel 45.

The end cover 50 is mounted on the bottom plate 90 and located beside the housing 30. The end cover 50 is provided with an indication panel 51 and a plurality of press buttons 52. The end cover 50 has an end formed with a protruding seat 54 for mounting a power button 55. The end cover 50 has a periphery formed with a plurality of through holes 53 aligning with the through holes 91 of the bottom plate 90.

The golf practicing device 1 further comprises a plurality of screws 790 extended through the through holes 53 of the end cover 50 and the through holes 91 of the bottom plate 90 and screwed into the screw bores 95 of the base 92, thereby securing the end cover 50 on the base 92.

As shown in FIG. 5, the circuit board 60 is mounted in the end cover 50 and is provided with an automatic positioning circuit 61 connected to the position sensing member 82 of the sensor 80 and the electromagnet 36, and an infrared sensing circuit 62 connected to the velocity sensing member 81 of the sensor 80.

In operation, referring to FIGS. 7 and 7A with reference to FIGS. 1-6, when the practicing ball 26 of the bar 25 is hit, the bar 25 is driven to rotate the cover 20 and the rotation disk 40, so that the velocity sensed portion 46 of the rotation disk 40 is moved to pass through the sensor 80 as shown in FIG. 4. At this time, the velocity sensing member 81 of the sensor 80 detects the rotation impulse width between the two opposite openings 48 of the velocity sensed portion 46 and sends a signal to the infrared sensing circuit 62 of the circuit board 60 to measure the velocity of the practicing ball 26 of the bar 25, and the velocity of the practicing ball 26 is indicated on the indication panel 51 of the end cover 50.

Accordingly, the sensor 80 detects the velocity of the practicing ball 26, and the indication panel 51 indicates the velocity of the practicing ball 26.

When the rotation speed of the rotation disk 40 is reduced, the position sensing member 82 of the sensor 80 can detect reduction of the rotation speed of the rotation disk 40 by movement of the position sensed portion 47 of the rotation disk 40 and send a signal to the automatic positioning circuit 61 of the circuit board 60 to energize the electromagnet 36 mounted in the chamber 35 of the housing 30, so that the electromagnet 36 produces a magnetic force to magnetically attract and move the magnetic block 24 mounted in the cover 20 so as to drive the cover 20, the rotation disk 40 and the bar 25 to move backward to the original position as shown in FIGS. 1 and 7. In such a manner, the bar 25 can be restored to the original position automatically, thereby facilitating the user practicing the golf skill.

Accordingly, the energized electromagnet 36 produces a magnetic force to magnetically attract and move the magnetic block 24 to return the bar 25 to the original position, so that the bar 25 can be restored to the original position automatically, thereby facilitating the user practicing the golf skill.

Referring to FIGS. 8 and 8A with reference to FIGS. 1-6, the locking portions 12 of the adjusting knob 10 are initially locked in the first limit grooves 451 of the rotation disk 40 as shown in FIG. 8A, and the practicing ball 26 of the bar 25 is located at the lowermost position.

Subsequently, the adjusting knob 10 is pressed toward the rotation disk 40 to move the sleeve 11 downward which presses and moves the first end of the bar 25 downward in the first barrel 41 (the pin 77 is movable in the slide slots 43 of the first barrel 41) to pivot the bar 25 upward about the opening 42 of the first barrel 41, so that the practicing ball 26 of the bar 25 is moved upward and located at a higher position. At this time, the sleeve 11 of the adjusting knob 10 is moved downward, so that the locking portions 12 of the adjusting knob 10 are moved into and locked in the second limit grooves 452 of the rotation disk 40.

Subsequently, the adjusting knob 10 is further pressed toward the rotation disk 40 to move the sleeve 11 downward which presses and moves the first end of the bar 25 downward in the first barrel 41 (the pin 77 is movable in the slide slots 43 of the first barrel 41) to pivot the bar 25 upward about the opening 42 of the first barrel 41, so that the practicing ball 26 of the bar 25 is moved upward and located at a higher position. At this time, the sleeve 11 of the adjusting knob 10 is moved downward, so that the locking portions 12 of the adjusting knob 10 are moved into and locked in the third limit grooves 453 of the rotation disk 40.

Subsequently, the adjusting knob 10 is further pressed toward the rotation disk 40 to move the sleeve 11 downward which presses and moves the first end of the bar 25 downward in the first barrel 41 (the pin 77 is movable in the slide slots 43 of the first barrel 41) to pivot the bar 25 upward about the opening 42 of the first barrel 41, so that the practicing ball 26 of the bar 25 is moved upward and located at the uppermost position. At this time, the sleeve 11 of the adjusting knob 10 is moved downward, so that the locking portions 12 of the adjusting knob 10 are moved into and locked in the fourth limit grooves 454 of the rotation disk 40.

Accordingly, the height of the practicing ball 26 of the bar 25 can be adjusted arbitrarily so as to fit users of different heights and statures, thereby facilitating the users operating the golf practicing device 1.

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention. 

1. A golf practicing device, comprising a housing; a sensor mounted in the housing and provided with a velocity sensing member and a position sensing member; and a rotation disk rotatably mounted in the housing and having a periphery formed with a protruding velocity sensed portion that is movable to pass through the sensor to connect the velocity sensing member of the sensor, and a protruding position sensed portion that is movable to pass through the sensor to connect the position sensing member of the sensor.
 2. The golf practicing device in accordance with claim 1, wherein the velocity sensed portion of the rotation disk is formed with two opposite openings located between the velocity sensed portion and the position sensed portion of the rotation disk.
 3. The golf practicing device in accordance with claim 1, further comprising a circuit board mounted beside the housing and provided with an automatic positioning circuit connected to the position sensing member of the sensor, and an infrared sensing circuit connected to the velocity sensing member of the sensor.
 4. The golf practicing device in accordance with claim 3, further comprising an electromagnet mounted in the housing and connected to the automatic positioning circuit of the circuit board.
 5. The golf practicing device in accordance with claim 4, wherein the housing has a surface formed with a chamber, and the electromagnet is mounted in the chamber of the housing.
 6. The golf practicing device in accordance with claim 4, further comprising a cover rotatably mounted on the housing and secured on the rotation disk to rotate therewith, and a magnetic block secured on the cover to rotate therewith and aligning with the electromagnet.
 7. The golf practicing device in accordance with claim 6, wherein the cover is provided with a support rod, and the magnetic block is secured on the support rod of the cover.
 8. The golf practicing device in accordance with claim 1, further comprising a base formed with a recess having a periphery formed with a plurality of screw bores, a bottom plate mounted in the recess of the base and having a periphery formed with a plurality of through holes aligning with the screw bores of the base, wherein the housing is mounted on the bottom plate and has a periphery formed with a plurality of through holes aligning with the through holes of the bottom plate.
 9. The golf practicing device in accordance with claim 8, further comprising a plurality of screws extended through the through holes of the housing and the through holes of the bottom plate and screwed into the screw bores of the base, thereby securing the housing and the bottom plate on the base.
 10. The golf practicing device in accordance with claim 8, further comprising an end cover mounted on the bottom plate and located beside the housing, wherein the circuit board is mounted in the end cover.
 11. The golf practicing device in accordance with claim 10, wherein the end cover is provided with an indication panel and a plurality of press buttons and has an end formed with a protruding seat for mounting a power button.
 12. The golf practicing device in accordance with claim 10, wherein the end cover has a periphery formed with a plurality of through holes aligning with the through holes of the bottom plate, and the golf practicing device further comprises a plurality of screws extended through the through holes of the end cover and the through holes of the bottom plate and screwed into the screw bores of the base, thereby securing the end cover on the base.
 13. The golf practicing device in accordance with claim 1, further comprising a support plate secured in the housing, a detector mounted on a bottom of the support plate, and two battery covers mounted on the support plate.
 14. The golf practicing device in accordance with claim 13, wherein the rotation disk is rotatably mounted on the support plate, and the sensor is mounted on the support plate.
 15. The golf practicing device in accordance with claim 1, wherein the sensor has two opened ends each provided with a catch plate.
 16. The golf practicing device in accordance with claim 1, further comprising a bar pivotally mounted on the cover, and an adjusting knob movably mounted on the rotation disk and urged on the bar.
 17. The golf practicing device in accordance with claim 16, wherein the cover has a periphery formed with an oblong slot, the rotation disk is provided with a first barrel and a second barrel, the first barrel of the rotation disk has a periphery formed with an opening, the bar has an end extended through the oblong slot of the cover and pivotally mounted in the opening of the first barrel, and the adjusting knob has an inside provided with a sleeve movably mounted in the second barrel of the rotation disk and rested on the bar.
 18. The golf practicing device in accordance with claim 17, wherein the second barrel has a periphery formed with a plurality of opposite limit grooves, and the sleeve of the adjusting knob is provided with two opposite locking portions selectively locked in the limit grooves of the second barrel. 